[解析]
(1)推理判断题。根据第一段When "irregardless" was included in Merriam﹣Webster dictionary,it caused wide disagreements. (当irregardless一词被收录进韦氏词典在社会上引起了广泛的争议。)可知,本文就此争议展开讲述,所以第一段的作用是引出要讨论的主题。故选B。
(2)细节理解题。根据最后一段So it's a word,but its use is still discouraged in formal writing.(因此,它是一个单词,但并不鼓励在书面正式语中使用它。)可知,"irregardless"不被鼓励在正式书面语中使用。故选D。
(3)观点态度题。根据第四段Irregardless' is too a word;you just don't understand dictionaries.(Irregardless也是个单词,只是你对字典不够理解。)和最后一段The dictionary's recognition doesn't enroll a word as correct in the English language.(字典的认知并没有将一个单词登记为正确的。)可推知,Mclntyre认为它的确是个单词,只是我们对字典不够理解,故McIntyre对于irregardless一词被收录进韦氏词典这一事情是支持的。故选A。
(4)主旨大意题。通读全文可知,尽管irregardless一词被收录进韦氏词典引起了广泛的争议,但根据文章最后一段最后一句So it's a word,but its use is still discouraged in formal writing.(因此它是一个单词,只是在正式书面你表达中并不鼓励使用这个单词。)可知,本文的大意是不管你怎么想,"不顾一切"就是一个词。故选C。